In Odorspace you can:

The TAKE A TEST button leads to a list of olfaction questionnaires. Some require smelling odorants and some do not. Some may also require registration. This list is updated periodically, so visit often!

The RESEARCH RESULTS button leads to the data we have collected in compiled form. It is intended to help researchers select odorants for their experiments. Odorants can be selected based on perceptual or structural similarity. This section is updated periodically based on the new...